1、spring简介
2、微服务
以前all in one
现在独立功能
3、配置
jdk1.8
mawen3.6.2
idea2019
setting配置mawen
创建mawen工程
导入相关依赖
导入不成功
一直以来mawen 的setting.xml报错不知
后来用idea打开才查到注释错误了
编写一个主程序

package com.gfl;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class HelloApplication {
    public static void main(String[] args) {
        SpringApplication.run(HelloApplication.class,args);
    }
}

标注主程序

package com.gfl;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class HelloController {
    @ResponseBody
    @RequestMapping("/hello")
    public String hello(){
        return "hello World!";
    }
}

启动spring
http://localhost:8080/hello